Creating and improving multi-threaded Geant4

We document the methods used to create the multi-threaded prototype Geant4MT from a sequential version of Geant4. We cover the Source-to-Source transformations applied, and discuss the process of verifying the correctness of the Geant4MT toolkit and applications based on it. Tools to ensure that the...

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Detalles Bibliográficos
Autores principales: Dong, Xin, Cooperman, Gene, Apostolakis, John, Jarp, Sverre, Nowak, Andrzej, Asai, Makoto, Brandt, Daniel
Lenguaje:eng
Publicado: 2012
Materias:
Computing and Computers
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/396/5/052029
http://cds.cern.ch/record/1515914
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author Dong, Xin
Cooperman, Gene
Apostolakis, John
Jarp, Sverre
Nowak, Andrzej
Asai, Makoto
Brandt, Daniel
author_facet Dong, Xin
Cooperman, Gene
Apostolakis, John
Jarp, Sverre
Nowak, Andrzej
Asai, Makoto
Brandt, Daniel
author_sort Dong, Xin
collection CERN
description We document the methods used to create the multi-threaded prototype Geant4MT from a sequential version of Geant4. We cover the Source-to-Source transformations applied, and discuss the process of verifying the correctness of the Geant4MT toolkit and applications based on it. Tools to ensure that the results of a transformed multi-threaded application are exactly equal to the original sequential version are under development. Stand-alone or simple applications can be adapted within 1-2 working days. Geant4MT is shown to scale linearly on an 80-core computer. In the special case of a single worker thread on one core, 30% overhead has been observed. We explain the reasons for this and the improvements introduced to reduce this overhead.
id cern-1515914
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-15159142022-08-17T13:24:44Zdoi:10.1088/1742-6596/396/5/052029http://cds.cern.ch/record/1515914engDong, XinCooperman, GeneApostolakis, JohnJarp, SverreNowak, AndrzejAsai, MakotoBrandt, DanielCreating and improving multi-threaded Geant4Computing and ComputersWe document the methods used to create the multi-threaded prototype Geant4MT from a sequential version of Geant4. We cover the Source-to-Source transformations applied, and discuss the process of verifying the correctness of the Geant4MT toolkit and applications based on it. Tools to ensure that the results of a transformed multi-threaded application are exactly equal to the original sequential version are under development. Stand-alone or simple applications can be adapted within 1-2 working days. Geant4MT is shown to scale linearly on an 80-core computer. In the special case of a single worker thread on one core, 30% overhead has been observed. We explain the reasons for this and the improvements introduced to reduce this overhead.oai:cds.cern.ch:15159142012
spellingShingle Computing and Computers
Dong, Xin
Cooperman, Gene
Apostolakis, John
Jarp, Sverre
Nowak, Andrzej
Asai, Makoto
Brandt, Daniel
Creating and improving multi-threaded Geant4
title Creating and improving multi-threaded Geant4
title_full Creating and improving multi-threaded Geant4
title_fullStr Creating and improving multi-threaded Geant4
title_full_unstemmed Creating and improving multi-threaded Geant4
title_short Creating and improving multi-threaded Geant4
title_sort creating and improving multi-threaded geant4
topic Computing and Computers
url https://dx.doi.org/10.1088/1742-6596/396/5/052029
http://cds.cern.ch/record/1515914
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AT apostolakisjohn creatingandimprovingmultithreadedgeant4
AT jarpsverre creatingandimprovingmultithreadedgeant4
AT nowakandrzej creatingandimprovingmultithreadedgeant4
AT asaimakoto creatingandimprovingmultithreadedgeant4
AT brandtdaniel creatingandimprovingmultithreadedgeant4

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